'We're just eating ice cream on the couch!' Ben Affleck admits he and Jennifer Garner are 'still taking in' his Oscar win

His hard work paid off when he won the Best Picture Oscar for his film Argo in February.

And it appears Ben Affleck has since been basking in the afterglow of his win with his wife Jennifer Garner.

'It's been a really nice time to hang out with my wife and that sort of thing, so we're just enjoying it,' said the 40-year-old actor at the John Varvatos 10th Annual Stuart House Benefit on Sunday in Los Angeles.

Quality time together: Fresh off his Oscar win, Ben Affleck said 'it's been a really nice time to hang out with my wife [Jennifer Garner]' at a children's charity event on Sunday in Los Angeles

The father of three, who was an honorary co-chair of the fundraiser with his 40-year-old wife, said he's taken some time off to let the achievement of winning Hollywood's most coveted award sink in.

'I've been able to really just enjoy my good fortune in the last couple
of weeks and sit back and kind of just take it in and not do anything,
just eat ice cream on the couch,' he told EOnline.

Following the hectic awards season, the actor said he relished having the chance to show his more altruistic side in support of Stuart House's Rape Treatment Center.

What a team: Ben and Jennifer took to the stage together as co-chairs of the event

Pretty in pink: Jennifer showed up to the fundraiser on Sunday wearing a retro frock and neon pink cardigan

Ben credited his 'great' wife for telling him about Stuart House and getting him involved in the organization initially.

'That really stuck with me and I wanted to support
it. Particularly, because these kind of causes are thought of largely
as women's issues,' said the Argo director and producer.

'And violence, sexual or otherwise,
against our fellow human beings is a crime against all of us,' he added.

American idols: Ben and Jennifer posed on the red carpet with some of their other celebrity attendees

Jennifer, meanwhile, looked more like a 1950s housewife than a sex siren as she posed on the red carpet at the event.

But the mumsy outfit of dress and a cardy was perfect for the charity fundraiser.

The brunette beauty wore a tailored pale pink plaid frock with knee-length hem that was assisted by a neon pink cardigan and ankle-strap open-toe heels.

She wore her chestnut hair loosely curled with sides tucked behind each ear.

Ben also wowed in black trousers, an ivory snap-button jumper and grey dress jacket, along a pair of polished shoes.

Pressure: Ben looked dapper chic but then again this was the famous designer's go-to event

Friends: Ben greeted John Varvatoes with a manly hug

The director even appeared to have cleaned up his beard a little for the star-studded occasion.

The couple left their little ones - Violet, seven, Seraphina, four, and one-year-old Samuel - at home to attend the event together, although they shied away from posing together on the arrivals line.

Other celebrities attending the event, which took place at the John Varvatos store in Los Angeles, included Naomi Watts and Liev Schreiber.

In sync: Naomi Watts and her longtime love Liev Schreiber were casually dressed in summer wear